Engine-lubricating device.



'A. KREBS;

ENGINE LUBRIGATING DEVICE. APPLIUATIO FILED rm.15,'1ooa.

552, Patanzsd July i3, 1909.

' 4' Afm/fm.

S'rnfrns P irnwr orion.

ARTHUR KREBS, l" PARIS, FRAXilI, ASSIGNUR. 'i'U i,.\ SOlII'l ANON YMll DES .A'Niilflh'ti ETABLISSEMENTS PANHARD LEVASSUH. UF PARIS, FRANVE.

pcciioation o1 Lotteria Patient.

Patented July ll. i309.

Appllcutton'iled February i5, 19u13. aerial No. om,

To all'wwm it may ccmcrn:A

Bc it known that 1, ARTHUR Konus, o citizon ci the Republic of France, and resident at Porro France, havo invented o new und 5 useful milie-Lubricating Device, which improvorncnt is fully set forth in the followin specification.

on internal combustion engine the lubricotton olionld incroeee with the power derel- Thieis indeed o rotionnl condition lo o;

w'ch applica to machines ira-general. The power demanded oiinternol combustion engioco uned. for driving vehicles is very vorioble. und very ire uently such motors are it run idly. Tho lubrication oi tho motor when ndgusted forts normal power, is greatly cxwc when it runs at c. much lower power or idly. This results in on accumulation of oil in the cylinders which frequently impedes fw 'th ignition and which in any case produces it very disc reeablc ond inconvenient liberotlon oi smo e at thc exhrust.

lfhc means hcreinoitcil described hnve for their object to regulate the sup ly of oil nutomnticoily to the power dcvc oped nt any moment by the motor.

In internal combustion cngincs thc powcr developed is proportionate to the weight or volume under ntmosphoric pressure of tho combustible mixture introduccd into thc. cylinder-during o. unit of time. This admission is generally revulntad b o throttle volvo. Iuthot part o? the con( uit which connects .thc carburetor with the throttle vulve thc flow'oi the combustible mixture trikes place under the influence of the vacuum producedby the suction of the motor. Accordingly, ii the supply of lubricating oil is regulated by this vacuum, the lubrication will bc rendered proportionate to the owcr devel' operi. It is this feature which 'forms the basis oi theprcscnt invention. l

Practical embodiments of the object oi thc in'yention orc illustrntcd by way of example inthe accompanying` drawing, in which vFigurc l is o vertical sec-tion.' Fig. .2 is u general View.

In these drawings, A (Figs. 1 ond 2) is o reservoir fo.' contninin the oil ot n substantiully construit lcvchtho oil vis supplicd to it through the force pipo 'l` of thc pump l which dmv s `thc oil from thc oil rcscrroir (Fig. 2). The oil` in excess ilows from the; reservoir A through the pipe T und retur....-. to the cylinder C. 'The pressure of tho oir in tho reservoir A is the sumo its the external-nir pijcssure owing to the provision of thclsn'mli :ole B (Fin. i) in the cover.

A chamber D provided with n gluzcd window E communicntcs nt its upper port with thc reservoir A by moons oi u nozzle l? closed more or less h v o. pin volvo G, und hy nhcnt conduit ll entering the oil Ain the reservoir A. At its lower port thc chamber D communicutcs through the pipe i with the suction oriiicc oi the wmp which forces the oil to thc motor. ('[lhis pump isnot illustrotcd. .t muy hc oi any suitoblc. kind, und is only1 mentioned to rcndcr thc description clcatrcr). Finally n )ipc K opening nt tho top ofthe chnmbcr i) 1s conncctod hy n pipo to the corhurctcr so thnt thc vacuum existing in the lutter when the motor is operativo is trimsmittcd to the chombcr D.

lhc system operutcs in the following mamnor. ll'hcn thc motor is runningythc churnhcr l) is suhjcctcd to the-vncuum which cx.- ists in thc curhurctcr owing. to thc' communicution cstuhlishcd with thc lottcr h v moons of thc pipo K. This vot-num iu tronsmittcd by thc nozzlc F und thc. conduit il tothe oil in the rcscrvoir A. The oil thus sucked flows through thc sparco hctwecn the sidcs of the nozzle F und thcscrcw pin vulves G which permits of controlling the supply. The oil therefore flows drop hy drop und in n visible mnnncr to thc bottom of thc chnnibcr D or. posses throuch thc pipc I to the pump which Y sucks it nml thcn forros it to the motor. 'lhc llow of oil thcrcfore tukcs pince untlcr thc iniiucncc of thc mcuum or reduction oi' prcssurc which exists in'thc carburetor in 4proportion to thc flow of thc liquid luci which )roduccs thc powcr; thc quoniitics of oil nml of petrol supplicd will therefore olu'nys hc in thc son c rutio und nsthc power l produced is proporlun: cito thc quantity of I l i u n i petrol which pusscs, 1i allows that thc lubriill ut oil tinics be proportionntc to cation w this powcr. l lidvintf now particularly dcscribcd :md n5- ccrtuinci thc hnturc of my scid invention und in u'hut nninncr lhc sonic in to lic porl forint-d, l dcclurc that whnt l cluini is-- The combination in a. niet@ mbncator, of an Gil reservoir, a xedfadjustable needle valve ontrolling the How from said reservoxg'a pipe comletng the valve with the carbumter,v and Communicating to the reservuir the variations of the vecuumin the carfuwete.

In testimom wherwof l' have, gnm this 

